WO2008076546A3 - Method and device for managing a power supply power-on sequence - Google Patents

Method and device for managing a power supply power-on sequence Download PDF

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Publication number
WO2008076546A3
WO2008076546A3 PCT/US2007/084166 US2007084166W WO2008076546A3 WO 2008076546 A3 WO2008076546 A3 WO 2008076546A3 US 2007084166 W US2007084166 W US 2007084166W WO 2008076546 A3 WO2008076546 A3 WO 2008076546A3
Authority
WO
WIPO (PCT)
Prior art keywords
supply
level
voltage
voltage generator
reference voltage
Prior art date
Application number
PCT/US2007/084166
Other languages
French (fr)
Other versions
WO2008076546A2 (en
Inventor
Massimiliano Frulio
Stefano Surico
Andrea Bettini
Monica Marziani
Original Assignee
Atmel Corp
Massimiliano Frulio
Stefano Surico
Andrea Bettini
Monica Marziani
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atmel Corp, Massimiliano Frulio, Stefano Surico, Andrea Bettini, Monica Marziani filed Critical Atmel Corp
Priority to CN2007800463961A priority Critical patent/CN101563844B/en
Priority to DE112007003118T priority patent/DE112007003118T5/en
Publication of WO2008076546A2 publication Critical patent/WO2008076546A2/en
Publication of WO2008076546A3 publication Critical patent/WO2008076546A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/147—Voltage reference generators, voltage or current regulators; Internally lowered supply levels; Compensation for voltage drops
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/143—Detection of memory cassette insertion or removal; Continuity checks of supply or ground lines; Detection of supply variations, interruptions or levels ; Switching between alternative supplies

Abstract

Many circuits require a minimum voltage supply level before proper operation may be initiated. Power-on control circuits have typically used a voltage supply level detector and have compared that level with an internal reference. The internal reference typically has a dependence on device threshold, accuracy of tracking electrical characteristics in the device, as well as temperature and processing variation. The present invention (400) incorporates a typical supply voltage detector (410) to trigger a reference voltage generator (420). The reference voltage generator (420) is a temperature and process independent supply capable of operating at low power supply levels. An output voltage level from the reference voltage generator (420) is compared with the ramping-up supply voltage. When the ramping-up supply voltage is greater than the reference voltage generator output voltage level an enable signal is produced. The enable signal signifies to system circuitry that a supply voltage level great enough to support nominal operations is present.
PCT/US2007/084166 2006-12-15 2007-11-08 Method and device for managing a power supply power-on sequence WO2008076546A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007800463961A CN101563844B (en) 2006-12-15 2007-11-08 Method and device for managing a power supply power-on sequence
DE112007003118T DE112007003118T5 (en) 2006-12-15 2007-11-08 Method and apparatus for managing a power supply startup sequence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/611,416 US7589572B2 (en) 2006-12-15 2006-12-15 Method and device for managing a power supply power-on sequence
US11/611,416 2006-12-15

Publications (2)

Publication Number Publication Date
WO2008076546A2 WO2008076546A2 (en) 2008-06-26
WO2008076546A3 true WO2008076546A3 (en) 2008-08-14

Family

ID=39526383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/084166 WO2008076546A2 (en) 2006-12-15 2007-11-08 Method and device for managing a power supply power-on sequence

Country Status (5)

Country Link
US (1) US7589572B2 (en)
CN (1) CN101563844B (en)
DE (1) DE112007003118T5 (en)
TW (1) TW200836206A (en)
WO (1) WO2008076546A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7466172B2 (en) * 2006-09-01 2008-12-16 Via Technologies, Inc. Supply voltage level detector
US7589572B2 (en) 2006-12-15 2009-09-15 Atmel Corporation Method and device for managing a power supply power-on sequence
CN201174061Y (en) * 2008-02-22 2008-12-31 鸿富锦精密工业（深圳）有限公司 Sequence control circuit
US7969211B2 (en) * 2009-04-10 2011-06-28 Himax Technologies Limited Power detecting device, power supply device using the same and reference voltage generator
CN102667658B (en) * 2009-10-28 2014-09-10 戴乐格半导体公司 Method for accessing or turning off integrated circuit and starting circuit
US11049576B1 (en) * 2019-12-20 2021-06-29 Micron Technology, Inc. Power-on-reset for memory

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6553212B1 (en) * 1999-11-01 2003-04-22 Nokia Networks Oy Method and apparatus for improving loop stability and speed of a power control loop
US6617833B1 (en) * 2002-04-01 2003-09-09 Texas Instruments Incorporated Self-initialized soft start for Miller compensated regulators

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3036290B2 (en) * 1993-04-08 2000-04-24 日本電気株式会社 Power-on reset circuit
US5323067A (en) * 1993-04-14 1994-06-21 National Semiconductor Corporation Self-disabling power-up detection circuit
KR100439024B1 (en) * 2001-03-08 2004-07-03 삼성전자주식회사 Reference voltage generator
US6617874B2 (en) * 2002-01-02 2003-09-09 Intel Corporation Power-up logic reference circuit and related method
KR100560652B1 (en) * 2003-01-14 2006-03-16 삼성전자주식회사 Temperature detection circuit independent of power supply and temperature variation
KR100562501B1 (en) * 2003-05-02 2006-03-21 삼성전자주식회사 Power-on reset circuit and semiconductor integrated circuit device including the same
US7340051B2 (en) * 2003-05-30 2008-03-04 Adc Dsl Systems, Inc. Power ramp-up in a line-powered network element system
US7589572B2 (en) 2006-12-15 2009-09-15 Atmel Corporation Method and device for managing a power supply power-on sequence

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6553212B1 (en) * 1999-11-01 2003-04-22 Nokia Networks Oy Method and apparatus for improving loop stability and speed of a power control loop
US6617833B1 (en) * 2002-04-01 2003-09-09 Texas Instruments Incorporated Self-initialized soft start for Miller compensated regulators

Also Published As

Publication number Publication date
CN101563844B (en) 2012-06-20
TW200836206A (en) 2008-09-01
CN101563844A (en) 2009-10-21
US20080143395A1 (en) 2008-06-19
WO2008076546A2 (en) 2008-06-26
DE112007003118T5 (en) 2009-10-29
US7589572B2 (en) 2009-09-15

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